Planet

• Non-profits including Public Employees for Environmental Responsibility (Peer), Earthjustice, and DarkSky International have filed a US petition demanding a formal review of proposed space-based datacenters. • The petition targets plans from tech companies, specifically those associated with Elon Musk and Jeff Bezos, citing fears of severe environmental destruction. • Experts warn that these orbital facilities could be "catastrophic" for the planet, specifically highlighting risks of increased light pollution and atmospheric damage.

• NASA's Psyche spacecraft successfully completed a Mars flyby, utilizing the planet's gravity to gain momentum for its journey toward a metal-rich asteroid. • During the maneuver, the probe tested its onboard scientific instruments, capturing high-resolution imagery and data of the Red Planet. • This flyby serves as a critical technical milestone, ensuring the spacecraft's systems are fully operational before it reaches its primary target.

• Scientists have identified a potentially habitable planet located 48 light-years away that possesses three critical requirements for life: a rocky composition, an atmosphere, and a suitable temperature. • This discovery is being highlighted as one of the closest approximations humans have found to a planet capable of supporting biological life. • The finding is significant because it provides a prime target for astronomers to study the chemical makeup of distant atmospheres in search of biosignatures.

• Astronomers have discovered an atmosphere containing helium on LHS 1140b, a rocky planet located 48 light-years away. • The planet is situated within its star's habitable zone, suggesting the potential for liquid water to exist on its surface. • This finding, published this week in the journal Science, marks a significant milestone in the search for life-friendly environments outside our Solar System.

• Astronomers have discovered a rocky exoplanet located 18,000 light-years away that may possess an Earth-like atmosphere capable of regulating climate. • Published in the journal Science, the study marks a significant breakthrough as researchers have previously only observed airless worlds or faint atmospheric remnants. • This discovery is critical because identifying stable atmospheres on rocky planets is a primary requirement in the search for life-sustaining environments beyond our solar system.

• Scientists have discovered the first confirmed atmosphere surrounding a rocky exoplanet located within its star's habitable zone. • This discovery marks the first time researchers have directly identified a specific atmospheric species on any rocky planet outside our solar system. • The finding is significant as it provides critical evidence regarding the potential for life and the environmental conditions of Earth-like worlds.

• Astronomers have discovered an atmosphere on a nearby Earthlike planet, marking the first time a potentially habitable world has been found to possess one. • An atmosphere is critical for life as it regulates climate, protects the surface from space radiation, and allows a planet to retain liquid water. • This discovery is significant because it establishes the planet as a primary candidate in the ongoing scientific search for extraterrestrial life.

• Astronomers have confirmed the presence of an atmosphere on LHS 1140 b, a rocky exoplanet located 48 light-years from Earth. • The planet is situated within its star's habitable zone, making it a primary candidate for studying the potential for liquid water and life. • This discovery is significant as it may be the first rocky planet in a habitable zone to have a confirmed atmosphere, a major milestone in two decades of exoplanet research.

• Astronomers from the University of California, Irvine, have updated their findings on an exoplanet located just 25 light years from Earth. • A new study published in The Astrophysical Journal reveals the planet is significantly smaller than previously estimated, possessing roughly twice the mass of Earth. • This discovery is critical because the planet's more manageable size makes it a much stronger candidate for being "Earth-like" and potentially habitable.

A brown huntsman is the quickest of more than 250 species analysed by scientists in the UK and GermanyIf arachnophobes were not frightened enough by the horrific ability of Australia’s huntsman spiders to drag dead mice up the sides of fridges, they now have another reason.They might be the fastest spiders on the planet. Continue reading...

• NASA's TESS satellite, launched in 2018 to detect exoplanets via the transit method (monitoring dips in stellar brightness), has accidentally discovered a distant world using an entirely different detection technique. • While the mission was specifically designed to find planets passing in front of stars, scientists realized the telescope was simultaneously collecting evidence for planets through an unexpected method. • This discovery is significant because it demonstrates that TESS can provide valuable astronomical data beyond its primary operational objective, expanding the scope of its scientific utility.

• The fridge-sized Hayabusa2 space probe performed a flyby of the near-Earth asteroid Torifune on Sunday. • JAXA scientists directed the probe to skim within 800 meters (0.5 miles) of the asteroid as part of a specialized test mission. • This operation serves as a trial run for planetary defense technology designed to determine if probes can successfully deflect dangerous space rocks away from Earth.

• Astronomers have discovered GJ 3378b, a potentially habitable planet located approximately 25 light-years from Earth. • The planet orbits a faint red dwarf star within the constellation Camelopardalis, positioned inside the star's habitable zone. • This discovery is significant because the planet's location suggests it could potentially support liquid water and the existence of life.

• Astronomers used the James Webb Space Telescope (JWST) to observe a unique gas giant exoplanet orbiting a dead star. • The discovery provides a rare glimpse into the final stages of a planetary system's life cycle after its host star has ceased nuclear fusion. • This observation is significant because it serves as a "time machine," allowing scientists to predict the eventual fate of our own solar system.

• NASA's James Webb Space Telescope is studying planets orbiting the remnants of dead Sun-like stars to understand the long-term evolution of solar systems. • By analyzing these distant systems, researchers like MacDonald are treating the observations as a "time machine" to predict the eventual fate of our own outer planets. • This research is significant because it provides the first direct look at how planetary bodies survive the death of their host stars.

• New state-of-the-art stellar evolution models suggest that Earth may avoid being engulfed when the sun eventually dies. • While the sun is expected to expand to hundreds of times its current size during its red giant phase, these models hint that the planet might escape this fate. • This research is significant as it challenges previous assumptions about the inevitable destruction of the innermost planets.

• NASA's Perseverance rover has detected hundreds of organic molecules within two mudstone samples in the Jezero crater on Mars. • These findings represent the most robust detection of complex carbon-based materials to date in this specific region of the Red Planet. • The discovery is significant because organic compounds are essential building blocks for life, strengthening the hypothesis that Mars once hosted ancient microbes.

• The European Space Agency's (ESA) Euclid spacecraft has captured the largest and most detailed image ever produced of the heart of the Milky Way galaxy. • The high-resolution photograph features over 60 million stars and identifies 51 known exoplanet systems within the region. • This achievement provides astronomers with an unprecedented dataset to study the galactic center and the distribution of stellar bodies.

• NASA's exoplanet-hunting spacecraft has discovered a highly unusual planetary system featuring an "improbable" and "wonky" orbital configuration. • The system's instability is driven by a massive, eccentric object within the system that disrupts the typical planetary alignment. • This discovery is significant because it provides crucial insights into how planets can form and survive around massive objects with extreme orbits.

• Astronomers using the James Webb Space Telescope have discovered a "salty surprise" on a cold exoplanet nicknamed the "Pink Planet." • The research team noted that the chemical composition of this planet is unlike any other celestial body they have previously analyzed. • This discovery is significant as it provides new insights into the atmospheric makeup of some of the coldest exoplanets in the universe.

• Astronomers using the James Webb Space Telescope (JWST) have identified HD 80606 b as one of the most extreme "Hot Jupiters" ever discovered. • The exoplanet is characterized by extreme temperatures caused by its proximity to its home star, which effectively "roasts" the planet. • This discovery is significant because it allows scientists to study the atmospheric dynamics and thermal extremes of highly irradiated gas giants.

• NASA's James Webb Space Telescope observed HD 80606 b, an exoplanet four times the mass of Jupiter with a highly elliptical orbit. • The planet experiences extreme heating as its orbit brings it exceptionally close to its Sun-like host star. • Researchers are presenting their preliminary findings on Tuesday at the 248th meeting of the American Astronomical Society in Pasadena, California.

Photosynthesis does not always result in wood growth, a key factor in carbon dioxide sequestrationTrees may not be able to store as much planet-heating carbon as hoped, a study suggests, with researchers finding photosynthesis does not always lead to wood growth.Scientists studied 137 sites across the US and found trees stopped growing months before the point in the year at which photosynthesis stopped. Continue reading...

• A rare "3-planet parade" featuring Mercury, Venus, and Jupiter will occur on June 12. • The planets will align low on the western horizon, becoming visible shortly after sunset. • This event offers a brief but striking visual spectacle for stargazers to observe the planetary alignment.

• NASA has officially declared the MAVEN Mars orbiter dead after 12 years of productive operation studying the Red Planet's atmosphere. • The spacecraft remains in a stable orbit, though it is no longer functional and will eventually crash into the Martian surface within the next 100 years. • This mission conclusion adds to the "Mars morgue" of previous probes, highlighting the long-term lifecycle and eventual disposal of deep-space hardware.

• The James Webb Space Telescope has identified two pairs of "JuMBOs" (Jupiter-mass binary objects) within a star-forming region of the Milky Way. • These rogue, planet-sized objects exist without orbiting a parent star, challenging previous theories that such sightings were merely optical illusions. • This discovery is significant because it contradicts standard models of planet formation, which typically require a host star to create such bodies.

• NASA announced in December 2025 that construction of the Nancy Grace Roman Space Telescope is complete, with a scheduled launch by May 2027 or potentially as early as fall 2026. • During its five-year primary mission, the observatory aims to discover approximately 100,000 new transiting planets and create the largest catalog of rogue worlds in history. • This mission is significant because it will drastically expand the known exoplanet population and provide unprecedented data on planets drifting without host stars.

• Planetcast won a sports broadcasting award at the Asia-Pacific Broadcasting+ Awards 2026 for implementing an IP-first architecture. • The company's new technical approach streamlined operational workflows and significantly reduced overall complexity. • Separately, a Zurich study of six markets, including Australia and Malaysia, revealed that 60% of patients in Hong Kong delay medical treatment due to cost anxiety.